yangc_cong的博客

String[] nums = {"111","123.4","222","333"}; 以上面的数组为例。如果单纯将每个字符串转化为整数然后求和，遇到不符合要求的字符串时，会抛出异常。程序中断，无法得到最终结果。 int sum = 0; int item = 0; String[] nums = {"111","123.4","222","333"}; for(String str: ...